Seasonal variations of marine protist ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
PMID :
Titre :
Seasonal variations of marine protist community structure based on taxon-specific traits using the eastern English Channel as a model coastal system
Auteur(s) :
Genitsaris, Savvas [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Monchy, Sébastien [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Viscogliosi, Eric [Auteur]
Schistosomiase, paludisme et inflammation
Sime-Ngando, Télesphore [Auteur]
Laboratoire Microorganismes : Génome et Environnement [LMGE]
Laboratoire Microorganismes : Génome et Environnement [LMGE]
Ferreira, Stéphanie [Auteur]
Genoscreen [Lille]
Christaki, Urania [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Monchy, Sébastien [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Viscogliosi, Eric [Auteur]
Schistosomiase, paludisme et inflammation
Sime-Ngando, Télesphore [Auteur]
Laboratoire Microorganismes : Génome et Environnement [LMGE]
Laboratoire Microorganismes : Génome et Environnement [LMGE]
Ferreira, Stéphanie [Auteur]
Genoscreen [Lille]
Christaki, Urania [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Titre de la revue :
FEMS Microbiology Ecology
Éditeur :
Wiley-Blackwell
Date de publication :
2015-03-31
ISSN :
0168-6496
Mot(s)-clé(s) en anglais :
18S rRNA gene
generalists
specialists
succession
tag pyrosequencing
unicellular eukaryotes
generalists
specialists
succession
tag pyrosequencing
unicellular eukaryotes
Discipline(s) HAL :
Sciences du Vivant [q-bio]/Microbiologie et Parasitologie/Protistologie
Sciences du Vivant [q-bio]/Microbiologie et Parasitologie/Bactériologie
Sciences du Vivant [q-bio]/Microbiologie et Parasitologie/Bactériologie
Résumé en anglais : [en]
Previous microscopy-based studies in the eastern English Channel have revealed it to be a productive meso-eutrophic coastal ecosystem, characterized by strong repeating patterns in microplankton succession. The present ...
Lire la suite >Previous microscopy-based studies in the eastern English Channel have revealed it to be a productive meso-eutrophic coastal ecosystem, characterized by strong repeating patterns in microplankton succession. The present study examines the seasonal structure of the entire protistan community from March 2011 to July 2013, using tag pyrosequencing of the V2-V3 hypervariable region of the 18S rRNA gene. A total of 1242 OTUs and 28 high-level taxonomic groups, which included previously undetected taxa in the area, were identified. The detected OTUs were considered according to taxon-specific traits, which included their trophic role, abundance and specialization level. Taxa differentiation based on specialization level rather than abundance was more informative in describing community organization. While generalists were always abundant, numerous specialists that were either rare or absent in most samples, increased in abundance for short periods, appearing to be overall abundant. Statistical and network analyses showed that the protistan seasonal organization was influenced by environmental parameters. It also highlighted that in addition to grazers, fungi and parasites played potentially significant roles during phytoplankton blooms. Overall, while the protistan succession was mainly shaped by environmental variations, biotic interactions among co-occurring taxa were the main structural drivers of the temporal assemblages.Lire moins >
Lire la suite >Previous microscopy-based studies in the eastern English Channel have revealed it to be a productive meso-eutrophic coastal ecosystem, characterized by strong repeating patterns in microplankton succession. The present study examines the seasonal structure of the entire protistan community from March 2011 to July 2013, using tag pyrosequencing of the V2-V3 hypervariable region of the 18S rRNA gene. A total of 1242 OTUs and 28 high-level taxonomic groups, which included previously undetected taxa in the area, were identified. The detected OTUs were considered according to taxon-specific traits, which included their trophic role, abundance and specialization level. Taxa differentiation based on specialization level rather than abundance was more informative in describing community organization. While generalists were always abundant, numerous specialists that were either rare or absent in most samples, increased in abundance for short periods, appearing to be overall abundant. Statistical and network analyses showed that the protistan seasonal organization was influenced by environmental parameters. It also highlighted that in addition to grazers, fungi and parasites played potentially significant roles during phytoplankton blooms. Overall, while the protistan succession was mainly shaped by environmental variations, biotic interactions among co-occurring taxa were the main structural drivers of the temporal assemblages.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
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